Wheeled scraper.



M. v. LIDDELL.

WHEELED SCRAPER. APPLICATION FILED AUG-20,1912- RENEWED SEPT. 11. 1916.

Patented Apr. 10, 1917.

4 SHEETS-SHEET 1.

A TTOR/VEY M. V. LIDDELL.

. WHEELED SCRAPER.

APPLICATION man AUG.20, 1912. RENEWEDSEPLH. 191s. LQQQAQO 6 1 Q 2 M; .1 ml. N$:| m m T M 10% w M LAMA. H 1 m a P w Rh MN mm {m QM WITNESSES:

A TTOR/VE V M. V. LIDDELL.

WHEELED SCR APER. APPLICATION FILED AUG-20. I912- RENEW ED SEPT-11.11MB- l Q22,%2& Patented Apr. 10,1917(.

4 SHEETS-SHEET 4.

4 I By M ATTORNEY MOSES V. LIDDELL, OF BROOKLYN, NEW YORK.

- WHEELED SCRAPER.

' Specification of Letters Patent.-

Patented Apr. to, new.

Application filed August 20, 1912, Serial No. 715,960. Renewed September 11, 1916. Serial No. 119,601.

To all whom it may concern:

Be it known that I, MOSES V. LIDDELL, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Wheeled Scraper,-of which the following is a full, clear, and exact description.

This invention relates to excavating or road machines of the type including a digging and carrying scoop ,movably mounted upon a frame and having means operable from the driving axle for hoisting the loaded scoop.

Among the objects of this invention is to provide a machine of the type indicated which is more simple and compact with reference to the hoisting devices and also including an auxiliary hoist whereby the scoop may be elevated when the machine is at a standstill.

The foregoing and other objects of this invention will hereinafter be more fully described and claimed and illustrated in the drawings accompanying this specification in which like characters of reference indicate corresponding parts in all the views, and in which- Figure 1 is a side elevation of one form of the invention, a portion of the front part of the machine being in section;

Fig. 2 is a plan now of the same, certain parts of the operating mechanism being in section;

Fig; 3 is a view similar to Fig. 1, but showing a modified form;

Fig. 1 is a view corresponding to Fig. 2, but covering the form shown in Fi 3;

Fig. 5 is a detail in side elevation sub stantially on the line 55 of Fig. 2 showing the means for controlling the descent of the scoop; and

Figs. 6 and 7 are details of the clutch which I prefer to use as a part of the hoisting mechanism.

Referring particularly to Fi s. 1 and 2, I show at 10 a suitable form 0 frame supported upon front wheels 11 and rear wheels 12, the connection between the frame and front axle 13 being through a spool 14 havin a fork 15 at its lower end in which the ax e 13 is pivoted by means of a stirrup 16, and a king bolt 17 which extends'down wardly through a block 18 connected to the frame and through said spool. The lower end of the spool is surrounded by a strap 19 having a pair of braces 20 diverging therefrom and connected at their upper ends it the points 21 to the side members of the rame.

The rear wheels 12 are connected to an axle 22 and rotate said axle when the machine is being propelled by any suitable means. A clutch wheel 23 is fixed to the axle preferably midway thereof between the wheels. On each side of the 'wheel 23 is a sleeve member 24, and associated with said sleeve members is a casing 25 inclosing the wheel 23 and rigidly connected to or made integral with the adjacent ends of the said of arms 28 whose rear ends are pivoted at 29 in proximity to the axle 22." When the scoop is down or in digging position, as shown in Fig. 1, the rear end will be closed by a guard 30 connected to and between the arms 28, and the scoop will be held in such position by a dog 31 cooperating with a lug 32 connected near the rear end of the scoop. Said dog 31 is pivoted on a horizontal shaft 33, and is adapted to be tripped by the operators foot in opposition to a spring 34; tending to hold the dog in looking position. When power is applied to hoist the scoop, the arms 28, guard 30 and scoop will all be hoisted as a unit, and when in hoisted position as indicated in dotted lines in Fig. 1,

the load may be dumped by application of the operators foot upon the trip 33, allowing the rear end of the scoop to drop into the position indicated in dot and dash lines in Fig. 1, such movement ofthe scoop being limited by a pair of stay chains 35 extending between the bottom of the scoop and a pair of eyes 36 connected to the frame 10. When the scoop is lowered for repeated filling,

the chains 35 will serve, through their per-' manent connections with the frame,.to cause the rear end of the-scoop to beheld elevated with respect to the arms and guard 30,

for connecting whereby the rear end of the scoop will again be closed automatically.

As one means for connecting the axle to the sleeve members 24, I provide a pair of straps 37, one end of each of which is con-' nected at 37 toa fixed point on the casing 25, and the other end of which is connected to a bell crank 38 pivoted in the casing and having at one end an arm 39. The opposite arms 39 are arranged to be operated by means of a toggle device 40, the inner ends of which are connected to a collar 41 slidably mounted upon one of the sleeve members-'24. The outer end of each toggle member is pivotedto a boss 42 having a pivot 42 at right angles to the member 40 and journaled in the outer end of the arm 39. The straps 37 are preferably arranged in pairs and when the collar 41 is operated toward the casing and the bell cranks 38 are swung on their pivots, the straps will be caused to grip upon the periphery of the wheel 23 in proportion to the power applied to the hand lever 43 connected to the collar 41. The straps and bell cranks being carried by the casing 25, the wheel 23 will cause the rotation of the, casing and hence the operation of the sleeve members 24. As onemeans the sleeve members to the scoop, I provide a pair of bevel gears 44 connected to the respective sleeves, and meshing with said gears are corresponding pinions 45 mounted upon shafts 46 having universal joint connection with a pair of drums 47 journaled upon the side members of the frame and having chains or cables 48 extendin f lonnected to one of the sleeve members 24 is a large spur wheel 49 meshing/with a corresponding pinion 50 connected to a counter shaft 51, and secured to said shaft 51 is a ratchet wheel 52 having one or more spring pressed pawls 53 whereby the scoop will be held elevated automatically at any stage. In order to lower the scoop the pawls 53 may be released from the ratchet wheels 52 by means of a foot lever 54. In order to prevent a too rapid descent of the scoop, I prefer to provide a band brake 55 including a strap 56 so connected to the lever 54 that it will be caused to grip the brake wheel 55 when the pawls are thrown out by the operation of the foot lever in the direction indicated by the arrow on Fig. 5.

In the practical operation of machines of this character, it is often necessary or desirable to hoist the scoop by means independent of the rear axle and driving wheels, as for instance, when the scoop encounters an obstruction, such as a stump or stone, and from which the scoop must be freed before thework can progress. To this end I provide a hand lever 57 journaled loosely upon the countershaft 51 adjacent the pinion 50 and thence to the front ends of the arms 28.

scoop. The pawl is normally out of engagement with the pinion 50 by virtue of a spring operator of the machine may readily lift the 59 so that the ordinary operations of the hoisting and lowering will not disturb the lever 57, but the pawl is adapted to be thrown into engagement with the pinion by pressure upon a trigger 60' pivoted at 61.

. The modified form of hoisting connections shown in Figs. 3 and 4 comprises a pair of drums 47 mounted directly upon the sleeve members 24 and having flexible connections 48 extending thence to the front end of the arms 28 over direction pulleys 62.

In order to prevent the scoop, when operated by the power of the machine, from. being hoistedtoo high, a lug 63. may be securedto the rear surface of, the guard 30, and by contact of said lug with the arm 64 carried bya rock shaft 65 connected by a link 66 to the lever 43, the clutch is assured of being released when the proper elevation of claimed.

Having thus described my invention, what I claim as new and desire tosecure byLetters Patent is 1. In a machine of the character set forth, the combination of a frame, a device movably connected to the frame, supporting wheels, an axle connected to and extending between a pair of said wheels, a power wheel secured to said axle, a two-part sleeve surrounding said axle and wheel, means to connect the power wheel to that portion of the sleeve surrounding the same, a pair of drums connected to said device, and power connections between the parts of the sleeve on opposite sides of the power wheel and said drums whereby, when the axle is rotated, the devicewill be hoisted. Y

2. In a machine of the character set forth, the combination of a frame, supporting wheels therefor, an axle extending between and connected to two of said wheels for rotation thereby, a device to be hoisted connected to the frame, a pair of drums, flexible connections between the drums and said device, and means between said axle and said drums for rotation thereof, said means including a power wheel secured rigidly to the central portion of the axle, a two-part sleeve surrounding the power wheel and axle, connections between the two parts of the sleeve and the drums, and means to connect the power wheel to the portions of the sleeve surrounding the same.

3. In a machine of the character set forth, the combination of a frame, a device to be hoisted connected to the frame, supporting means for the frame comprising wheels, an axle connectedto a pair of said wheels and adapted to be rotated thereby, a pair of drums secured upon opposite sides of the frame on parallel axes, flexible connections between the drums and said device for hoisting the latter, and means to rotate the drums from said axle, said last mentioned means including a power wheel-secured to the axle, a two-part sleeve surrounding the axle and wheel, means to rotate the sleeve from said wheel, and power connections b etween the several drums of the sleeve.

In testimony whereof I have signed my .name to this specification in the presence of two subscribing witnesses.

MOSES V. LIDDELL.

Witnesses: 4

GEO. L. BEELER, PHILIP D. RoLLHAUs.

and the two parts i 

